Many diseases are treated under this brain plant umbrella; with psychiatric diseases it's tricky:
Psychiatric illnesses require a similar operation — but surgeons must implant the electrode into a different spot in the brain.
There's the rub: It's not clear which spot is best for which psychiatric disease. In fact, two manufacturers — Medtronic and St. Jude Medical — have begun major studies of DBS' effects on depression. Each places the implant in a different region, based on promising pilot studies.
Trying brain pacemakers to zap psychiatric disease - Yahoo! News